I am running SUSE 10.0 (kernel 2.6.13) with a 128mb GeForce 6800 and KDE and I can only get 800x600 resolution. No matter what resolution I set in YaST when I test the settings it reverts to 800x600. I upgraded the drivers to 8752 and still I cant get higher than 800x600. I am connecting my Panasonic HDTV to the DVI of the card as the monitor. Does anyone have a suggestion?

What resolution were you using previously?
Which driver version were you using previously?
Have you tried editing xorg.conf to request your old resolution?
Please generate and post an nvidia-bug-report.log.